Home / 30,573.31-42,181.08-18,469.26

Finding the Fourth Proportional to 30,573.31, 42,181.08 and 18,469.26

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Solution

The fourth proportional to 30,573.31, 42,181.08 and 18,469.26 is: 25,481.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,573.31 : 42,181.08 = 18,469.26 : x
  2. Step 2: Convert to fraction form
    30,573.31/42,181.08 = 18,469.26/x
  3. Step 3: Cross multiply
    30,573.31x = 42,181.08 × 18,469.26
  4. Step 4: Simplify right side
    30,573.31x = 779,053,316.29
  5. Step 5: Solve for x
    x = 779,053,316.29/30,573.31
  6. Step 6: Final answer
    x = 25,481.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.